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//===-- AlphaTargetMachine.cpp - Define TargetMachine for Alpha -----------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
//
//===----------------------------------------------------------------------===//
#include "Alpha.h"
#include "AlphaJITInfo.h"
#include "AlphaTargetAsmInfo.h"
#include "AlphaTargetMachine.h"
#include "llvm/Module.h"
#include "llvm/PassManager.h"
#include "llvm/Target/TargetMachineRegistry.h"
#include "llvm/Support/raw_ostream.h"
using namespace llvm;
/// AlphaTargetMachineModule - Note that this is used on hosts that cannot link
/// in a library unless there are references into the library. In particular,
/// it seems that it is not possible to get things to work on Win32 without
/// this. Though it is unused, do not remove it.
extern "C" int AlphaTargetMachineModule;
int AlphaTargetMachineModule = 0;
// Register the targets
static RegisterTarget<AlphaTargetMachine> X("alpha", "Alpha [experimental]");
// Force static initialization when called from llvm/InitializeAllTargets.h
namespace llvm {
void InitializeAlphaTarget() { }
}
const TargetAsmInfo *AlphaTargetMachine::createTargetAsmInfo() const {
return new AlphaTargetAsmInfo(*this);
}
unsigned AlphaTargetMachine::getModuleMatchQuality(const Module &M) {
// We strongly match "alpha*".
std::string TT = M.getTargetTriple();
if (TT.size() >= 5 && TT[0] == 'a' && TT[1] == 'l' && TT[2] == 'p' &&
TT[3] == 'h' && TT[4] == 'a')
return 20;
// If the target triple is something non-alpha, we don't match.
if (!TT.empty()) return 0;
if (M.getEndianness() == Module::LittleEndian &&
M.getPointerSize() == Module::Pointer64)
return 10; // Weak match
else if (M.getEndianness() != Module::AnyEndianness ||
M.getPointerSize() != Module::AnyPointerSize)
return 0; // Match for some other target
return getJITMatchQuality()/2;
}
unsigned AlphaTargetMachine::getJITMatchQuality() {
#ifdef __alpha
return 10;
#else
return 0;
#endif
}
AlphaTargetMachine::AlphaTargetMachine(const Module &M, const std::string &FS)
: DataLayout("e-f128:128:128"),
FrameInfo(TargetFrameInfo::StackGrowsDown, 16, 0),
JITInfo(*this),
Subtarget(M, FS),
TLInfo(*this) {
setRelocationModel(Reloc::PIC_);
}
//===----------------------------------------------------------------------===//
// Pass Pipeline Configuration
//===----------------------------------------------------------------------===//
bool AlphaTargetMachine::addInstSelector(PassManagerBase &PM,
CodeGenOpt::Level OptLevel) {
PM.add(createAlphaISelDag(*this));
return false;
}
bool AlphaTargetMachine::addPreEmitPass(PassManagerBase &PM,
CodeGenOpt::Level OptLevel) {
// Must run branch selection immediately preceding the asm printer
PM.add(createAlphaBranchSelectionPass());
return false;
}
bool AlphaTargetMachine::addAssemblyEmitter(PassManagerBase &PM,
CodeGenOpt::Level OptLevel,
bool Verbose,
raw_ostream &Out) {
PM.add(createAlphaLLRPPass(*this));
PM.add(createAlphaCodePrinterPass(Out, *this, OptLevel, Verbose));
return false;
}
bool AlphaTargetMachine::addCodeEmitter(PassManagerBase &PM,
CodeGenOpt::Level OptLevel,
bool DumpAsm, MachineCodeEmitter &MCE) {
PM.add(createAlphaCodeEmitterPass(*this, MCE));
if (DumpAsm)
PM.add(createAlphaCodePrinterPass(errs(), *this, OptLevel, true));
return false;
}
bool AlphaTargetMachine::addCodeEmitter(PassManagerBase &PM,
CodeGenOpt::Level OptLevel,
bool DumpAsm, JITCodeEmitter &JCE) {
PM.add(createAlphaJITCodeEmitterPass(*this, JCE));
if (DumpAsm)
PM.add(createAlphaCodePrinterPass(errs(), *this, OptLevel, true));
return false;
}
bool AlphaTargetMachine::addSimpleCodeEmitter(PassManagerBase &PM,
CodeGenOpt::Level OptLevel,
bool DumpAsm,
MachineCodeEmitter &MCE) {
return addCodeEmitter(PM, OptLevel, DumpAsm, MCE);
}
bool AlphaTargetMachine::addSimpleCodeEmitter(PassManagerBase &PM,
CodeGenOpt::Level OptLevel,
bool DumpAsm,
JITCodeEmitter &JCE) {
return addCodeEmitter(PM, OptLevel, DumpAsm, JCE);
}
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